Tow identical solid balls, one of ivory and the other of wetr-clay are dropped from the same height on to the floor. Which one will rise to a greater height after striking the floor and why?

Explanation

We know that ivory ball is more elastic than
wet-clay ball. Therefore, the ivory ball will
tend to regain its original shape in a very
short time after the collision. Due to it, there
will be large energy and momentum transfrer
to the ivory ball in comparison to the wet-
clay ball. As a result of it , the ivory ball will
raise higher after the collision.